1974

5.3

1959

8.1

2016

6.7

1976

7.0

1980

3.1

2017

4.9

2002

5.5

2001

6.2

2023

7.2

2005

6.2

1964

6.7

1959

7.1

2000

6.2

2002

5.6

2020

6.4

1972

4.5

1984

4.9

1999

6.6

1996

6.8

2003

6.5